Characteristics of abnormal large waves measured from coastal videos SCIE SCOPUS

Cited 19 time in WEB OF SCIENCE Cited 22 time in Scopus
Title
Characteristics of abnormal large waves measured from coastal videos
Author(s)
Yoo, J.; Lee, D. -Y.; Ha, T. -M.; Cho, Y. -S.; Woo, S. -B.
KIOST Author(s)
Yoo, Je Seon(유제선)
Publication Year
2010
Abstract
Recently, tsunami-like sea-level oscillations occurred in a region of the west coast of Korea (i.e. in the eastern part of the Yellow Sea), during a typical rough spring weather episode on 4 May 2008. The analysis of these tsunami-like abnormal waves focuses solely on the videos recorded by a CCTV surveillance system in the directions of the entrance and inside parts of a local coastal pocket beach. Time-series of the vertical and horizontal sea surface oscillations were extracted from the video recordings through calibrating image distortions, accumulating 1-D intensity arrays along the line transects of interest in time, and identifying the trajectories of the oscillations. Frequency and time-domain analysis of the time-series signals revealed that the maximum height of the tsunami-like waves reached 1.3 m, having a dominant period of 185 s (3.1 min). In addition, the results indicate that the celerity of the maximum height wave approximated 7.3 m/s, which lead to the losses of life of several people who could not escape immediately from the fast tsunami flooding the shore.
ISSN
1561-8633
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/4207
DOI
10.5194/nhess-10-947-2010
Bibliographic Citation
NATURAL HAZARDS AND EARTH SYSTEM SCIENCES, v.10, no.4, pp.947 - 956, 2010
Publisher
COPERNICUS GESELLSCHAFT MBH
Subject
SAMPLING THEORY; OSCILLATIONS; PROPAGATION
Type
Article
Language
English
Document Type
Article
Publisher
COPERNICUS GESELLSCHAFT MBH
Related Researcher
Research Interests

Coastal disaster observation and prediction,Coastal numerical modeling,Coastal remote sensing,연안침식 등 연안재해 관측 및 예측,연안 파랑 및 해수유동 수치모델링,연안 원격탐사

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